We covered a lot of ground with Sinatra that reminded me of rails back when I took the back-end web development course at GA, dealing with views and embedding Ruby code in html templates.
We reviewed REST, otherwise known as REpresentational State Transfer, which refers to the way browsers interact with servers. This includes the five main methods: GET, POST, PUT, PATCH, and DELETE. We also learned about how query parameters can be set up in web applications where you pass in dynamic params.
The rest of the day involved working with ActiveRecord and Sinatra. Overall, understanding the structure of prepping files in Sinatra will take a little bit of review for me. There are some strange conventions involved with naming files and requiring other files, that will only take a matter of time before they are second nature to me.